Overview. Caffeine is a chemical primarily found in coffee and tea, but which also appears in various sodas, sports drinks and foods. It is a stimulant, therefore causing changes in metabolism as well as increases in focus and energy. Caffeine is addictive and can cause withdrawal following cessation after frequent use.
robot. 1  a machine that resembles a human and does mechanical, routine tasks on command. 2  a person who acts and responds in a mechanical, routine manner, usually subject to another's will; automaton. 3  any machine or mechanical device that operates automatically with humanlike skill.
So letâs clear things up. First, stop thinking of robots. A robot is a container for AI, sometimes mimicking the human form, sometimes notâbut the AI itself is the computer inside the robot. AI is the brain, and the robot is its bodyâif it even has a body.